Johnson Controls METASYS TC-9102 Series User Manual

Technical Bulletin—TC-9102 9
When the controller is connected to a supervisory system, the winter
and/or summer compensation modes may be enabled. The supervisory
system must be programmed to set the outdoor air temperature via the
communications bus on a periodic basis. After a power interruption the
winter and summer compensation modes are temporarily disabled until a
new outdoor air temperature value is received. When the outdoor
temperature falls below the winter set point, the working set point of the
controller will be raised or lowered in accordance with the winter
authority slope. When the outdoor temperature rises above the summer
set point the working set point of the controller will be raised in
accordance with the summer authority slope. The maximum amount of
compensation is limited by the Winter Authority Limit and the Summer
Authority Limit.
The effect of the winter and summer compensation on the controller set
point is shown below.
0
-5
-4
-3
-2
-10
1
2
3
4
5
-20-30
0
-1
10 20
30
40 50
Winter Authority Slope
(+0,1)
Winter Authority
Limit (-3 K))
Winter
Setpoint
(10°C)
Summer
Setpoint
(24°C)
Summer Authority Limit
(+5 K)
Summer Authority
Slope (+0,2)
Setpoint
Compensation
(K)
Outdoor Air
Temperature
(°C)
Winter Authority
Slope (-0,1)
tc2winsu.drw
Figure 6: Winter/Summer Compensation
Winter/Summer
Compensation

Johnson Controls METASYS TC-9102 Series Specifications

General

Brand	Johnson Controls
Model	METASYS TC-9102 Series
Category	Control Unit
Language	English